Wire and rope clamp



K. ARNSTEIN WIRE AND ROPE CLAMP Filed Oct.

PTEN Free]? KARL ARNSTEIN, OF FRIEDR-ICHSHAFEN-ON-THE-BODENSEE, GERMANY, ASiSIGNOR TO THE FIRM: LUFTSCHIFFBAU ZEPPELIN, GESELLSCI-IAFT MIT BESCHRANKTER I-IAFTUNG, OF FRIEDRICHSHAFEDLON-T'HE-BODENSEE, GERMANY.

.WIB-E AND ROPE CLAMP.

Application filed. cto ber 23', 1922. Serial No. 596,488.

To all whom it may concern:

Be it known that I, IXARL AnNsTinN, a citlzen of Czechoslovakia, residing at F riedrichshafen-on-the-Bodensee, Germany, have invented certain new and useful Improvemerits in Wire and Rope Clamps, for which I have filed an application in Germany October 21, 1921 and of which the following is a specification;

My invention has. reference to clamping means for wires, wire ropes and the like, and it particularly provides for the passing of the wires or ropes substantially or approximately or exactly through the median line of the coupling. In accordance with my invention the wire or rope tobe tightened or the wires or ropes to be intersectingly connected or coupled with each other or with other parts are passed between concave and convex spherical clamping surfaces so as to be deflected, and in such amanner that the wires or ropes are fully applied against the convex spherical surface, while upoirthe concave spherical clampingsurfaceth ey are only supported upon the edges the clamping surfaces, and remain freely exposed in the middle thereof.

The clamping device according to my invention offers the advantage that owing to the central arrangement of the screw shaft and to the wires or the like extending through the central portion of the clamping members the wires are held fast along an extended clamping surface at the same time allowing of employing a screw shaft of large section.

In the drawingis shown by way of example several forms of clamping means embodying my invention. Figs. 1 and 2 are respectively a central vertical section and a side elevation of one form of clamping device embodying my invention. Fig. 3 is an elevation, partly in section, of another form of clamping device embodying my invention. Fig. 4 is a detail cross-sectional view. Fig. 5 is an elevation of the form of device shown in Fig. 3 but slightly moditied.

Referring to the drawings, the clamping device shown in Figures 1 and 2 consists of a head screw 44 the underside of which facing the shaft is convex. The shaft is provided with an axial slot Z) extending in The modification disclosed in Figures, 3 i

and l comprises a head screw a similar to that shown in Figure 1. However in this form of the invention the shaft of the screw is provided with two intersectingly arranged slots 6 e crossing each other at an angle in different planes which angle depends upon the angle of intersection of the wires, one of the slots extending down to the convex spherical surface of the head 1 and constituting, so to speak, the continuation of this surface through the shaft. There is also mounted upon the shaft a biconcave intermediate member 9 and an additional member h which is. providedwith a convex spherical surface oppositeone of the concave spherical surfaces of the intermediate member g. One of the wires f is passed between the head of the screw and the adjacent concave spherical surface of the intermediate piece 9 through the dee er slot, 6, while the other wire 7 is passed etween the other concave spherical surface of the intermediate member 9 and the convex spherical surface of the intermediate member it through the other slot, 6 in the shaft of the screw. All the parts are then tightly pressed against each other by the nut z in such a manner that the metal plate 70 upon which the clamping device is to be mounted, is interposed between the nut i and the intermediate member h.

In order to prevent the entire weight of the clamping device to be placed upon one side only of the fastening or supporting metal plate, and with a view to distributing the strains on both sides of the plate, the bi-concave intermediate member 9, as shown in Figure 5 of the drawing, may be split up into two plane-concave sections 9 g between which the metal plate k is arranged.

Means are provided in this connection for inserting a filling member Z into the crossshaped free space produced by the slotting of the stem, after the wires or the like have been inserted and the coupling members have been assembled.

I claim 1. A clamping device for wires and'the like, comprising a member having a surface of convex spherical curvature adapted'to have a wire or the like pass over it in any'direction; a second member having a surface of concave spherical curvature adapted to press said wire or the like against said first member; and means for forcing said members and surfaces toward each other, the said surfaces thereby deflecting and clamping said wire or the like.

2. A clamping device for wires and the like'comprising a member having a surface of convex spherical curvature adapted to have a wire or the like pass over it in any direction; a second member having a sun face of concave spherical curvature adapted to press said wire or the like against said first member; a screw having a longitudinal slot passing through its stem and a nut fitting thereon for forcing said members and surfaces toward each other, the said surfaces thereby deflecting and clamping said wire or the like.

3. A clamping device for wires and the like, comprising a head screw the head of which is provided with a surface of convex spherical curvature adapted to have a wire or the like pass over it in any direction;a member having a surface of cgncave spherical curvature adapted to press said wire or the likeagainst said head of the screw; and

"a'nutfor forcing the member against the it in any direction; a third member ar ranged between said other two members having two surfaces,-each of concavespherical curvature adapted to press said wires or the like against said first two members; and means for forcing said members and surfaces together, the said surfaces thereby defleeting and clamping said wires or the like.

5. A clampingdevice for wiresand the like, comprising a member having a surface of convex spherical curvature adapted to have a wire or the like pass over it in any direction; a second member having a surface of convex spherical curvature adapted to have a wire or the like pass over it in any direction; a third member arranged be,- tween said other two members having two surfaces, each of concave spherical curvature adapted to'press said wire or the like against said first two members; and means comprising a screw the stemof which has two intersecting slots for forcing said members and surfaces together, the said surfaces thereby deflecting and clamping said Wires or the like.

In testimony whereof I affix y" signature,

KARL ARNSTEIN. 

